IP431AH

Prelim. 3/99

Cathode To Anode Voltage

Cathode Current Range

Reference Input Current Range

TO39 Package

Derate Above 25°C

Maximum Operating Junction Temperature

Operating Ambient Temperature Range

Storage Temperature Range

37V

- 100 to +150mA

- 0.05 to +10mA

1.5W

15mW/°C

150°C

- 55 to +125°C

- 65 to 150°C

FEATURES

• PROGRAMMABLE OUTPUT VOLTAGE TO

36V

• EQUIVALENT FULL RANGE TEMPERATURE

COEFFICIENT OF 30ppm/°C TYPICAL

• TEMPERATURE COMPENSATED FOR

OPERATION OVER FULL RATED OPERATING

TEMPERATURE RANGE

• SINK CURRENT CAPABILITY 1 TO 100 mA

• FAST TURN–ON RESPONSE

• LOW DYNAMIC OUTPUT IMPEDANCE

(0.2

Ω

Ω typical)

• LOW OUTPUT NOISE VOLTAGE

0.89

(0.035)

max.

0.66 (0.026)

1.14 (0.045)

0.71 (0.028)

0.86 (0.034)

2.54

(0.100)

5.08 (0.200)

typ.

45˚

12.70

(0.500)

min.

4.19 (0.165)

4.95 (0.195)

8.89 (0.35)

9.40 (0.37)

7.75 (0.305)

8.51 (0.335)

0.41 (0.016)

0.53 (0.021)

dia.

1

2

3

PIN 1 = REF

PIN 2 = CATHODE

PIN 3 = ANODE

TO39 PACKAGE

DESCRIPTION

The IP431A circuit is a monolithic three terminal

programmable shunt regulator diode. This voltage

reference operates as a low temperature coefficient

zener which is programmable between Vref (2.5V)

and 36 volts using two external resistors. The

device has a wide operating current range of 1mA to

100mA and a typical dynamic impedance of 0.2

Ω.

Active output circuitry provides a very sharp turn-on

characteristic making these devices excellent

replacements

for

Zener

Diodes

in

many

applications. Being a shunt regulator it can be used

as either a positive or negative voltage reference.

MECHANICAL DATA

Dimensions in mm (inches)